A new exhibition, at the Cardiff Story Museum on The Hayes in the city centre, will feature memorabilia, match shirts and photographs from the 1927 FA Cup final.
The exhibition is open now and runs until September.
Ken Choo, executive director and CEO of Cardiff City, said: "We are delighted to support this community-themed celebration of our FA Cup win in 1927.
"The 90th anniversary of our victory is a perfect time to reflect on the achievement of that side captained by the incomparable Fred Keenor.
"We are so proud of this important chapter of our history and it continues to be an inspiration to players and supporters alike."